/*
 *  This file is part of CrappyDB-Server, 
 *  developed by Luca Bonmassar <luca.bonmassar at gmail.com>
 *
 *  CrappyDB-Server is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  CrappyDB-Server is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with CrappyDB-Server.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.bonmassar.crappydb.server.io;

import java.nio.channels.SelectionKey;
import java.util.List;

import org.bonmassar.crappydb.server.exceptions.ClosedConnectionException;
import org.bonmassar.crappydb.server.io.CommunicationTask.CommunicationDelegate;
import org.bonmassar.crappydb.server.memcache.protocol.ServerCommand;

public abstract class CommunicationDelegateAbstract implements CommunicationDelegate {
	public TransportSession read(SelectionKey sk){
		TransportSession connHandler = getSession(sk);

		List<ServerCommand> cmdlist = connHandler.doRead();
		if(null == cmdlist)
			return null;

		for(ServerCommand cmd : cmdlist)
			try {
				cmd.execCommand();
			} catch (ClosedConnectionException e) {
				connHandler.doClose();
				break;
			}

		return connHandler;
	}
}
